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Fri, 30 Oct 2020 12:53:03 +0000 (GMT) X-AuditID: cbfec7f2-7efff70000001938-e0-5f9c0caf7c1d Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 20.57.06017.FAC0C9F5; Fri, 30 Oct 2020 12:53:03 +0000 (GMT) Received: from AMDC3061.digital.local (unknown [106.120.51.75]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20201030125302eusmtip293f7bc05eee5aec888e610e430a328c7~Cxj0KYcpI1667716677eusmtip2J; Fri, 30 Oct 2020 12:53:02 +0000 (GMT) From: Sylwester Nawrocki To: georgi.djakov@linaro.org, cw00.choi@samsung.com, krzk@kernel.org Cc: devicetree@vger.kernel.org, robh+dt@kernel.org, a.swigon@samsung.com, myungjoo.ham@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, dri-devel@lists.freedesktop.org, s.nawrocki@samsung.com Subject: [PATCH v7 3/6] PM / devfreq: exynos-bus: Add registration of interconnect child device Date: Fri, 30 Oct 2020 13:51:46 +0100 Message-Id: <20201030125149.8227-4-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201030125149.8227-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0VSa0hTYRjm2zk7OxMnxyn5YpfpyMhIzezHYUqoKCwsuvwoCHTNPLnKTdmc VkQaeal5wZSaWuk0UluocyyL0iidSc5caaahsZIiNM28LCm7Oc+if8/7XL734eUjMWED1588 rspk1Cp5mpjwwNuffh8IafW8LtuWNxhBO2ryEd1W2cqlRxY/cela6wCXfuWcJWh9p5mgyx1l OG23m3j00IPrBL1QYkV0pf0Rh262vuXRY+ebCDq/08qju6cLuXRlxSQRTUnNxkuEdPx1ByF1 FPVypKUWI5IumDfs4x72iEph0o5nMeqwnUc8FK3TdixjmDrVM3swF/UJdIhPArUDbtlzkQ55 kEKqCcH4vZc4OywisL7/6VYWEDS+MHL+RZZGqnms0Ijgbv/S/0jLExvuchFUOJT0lCIX9qXi oOBjzSqPURMcuFCLubAPJYeZtjcrr5IkTgVBz+cEFy2gJKDTN+PsMhHcMT1etfOpSNBdGnWX MPOgYs6XxXEw9PSL2+8DU70WHovXga2ieLUbUBcQFD8c47FDGQJHrwGxrkgYH/hBuEpgVDC0 Pghj6RjoHnWVIFewF4zOeLP1vaC8XY+xtAAuFghZ90ZYNurd1fyh6MMfd1IK9VUYe51SBB2X G/AyJKr+v8uAkBH5MVqNMpXRhKuY7FCNXKnRqlJDj6YrzWjl99h+987fR87B5C5EkUjsKYgW XZMJufIszWllFwISE/sKYp/bkoSCFPnpM4w6XabWpjGaLrSWxMV+goj6yUQhlSrPZE4yTAaj /qdySL5/LqqLmtkvCT0hQnO6X/vrEhSbtTemLB0bCRlRsz4InJZl3yv920PecRUTOQnpDe3P RjclfeGJdAH48K7G7G+SrfpzwVU5dkmexRRrcIo6Cw95H5v/6r1779U9tthjewPPJvfdPAD6 +NQ1iocxJjywqYW4vSMgPlHCVwkNJSrtRzGuUcjDt2Bqjfwvad9oZjkDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpnkeLIzCtJLcpLzFFi42I5/e/4Pd31PHPiDfZsk7K4P6+V0WLjjPWs Fte/PGe1mH/kHKvFla/v2Sym793EZjHp/gQWi/PnN7BbXN41h83ic+8RRosZ5/cxWaw9cpfd 4nbjCjaL1r1H2C0Ov2lntZgx+SWbg4DHplWdbB53ru1h87jffZzJo2/LKkaPz5vkAlij9GyK 8ktLUhUy8otLbJWiDS2M9AwtLfSMTCz1DI3NY62MTJX07WxSUnMyy1KL9O0S9DLWvznPXHBV oOLo+7AGxlO8XYycHBICJhLfr89i72Lk4hASWMoosfjAAcYuRg6ghJTE/BYliBphiT/Xutgg aj4xSnza3ckIkmATMJToPdoHZosIeEical3LClLELPCBSWLtg16whLBAvET/o20sIENZBFQl jr72BgnzClhJdE1fywKxQF5i9YYDzCA2p4C1RFfnDSaQciGgmrcHqiYw8i1gZFjFKJJaWpyb nltspFecmFtcmpeul5yfu4kRGAnbjv3csoOx613wIUYBDkYlHl4H+dnxQqyJZcWVuYcYJTiY lUR4nc6ejhPiTUmsrEotyo8vKs1JLT7EaAp00kRmKdHkfGCU5pXEG5oamltYGpobmxubWSiJ 83YIHIwREkhPLEnNTk0tSC2C6WPi4JRqYAz+GFvp9Fz3Y/uCLHlJ+aDbKhKpXC7Hvb9yi0qF 6/0VNz+5cnpGQoqLXsbuE4/uu534xb9G8py0b6LnnJTM/MK0NL03T1Pm7/HZ7xdT5Piv7arK x/93bDfIfzqyq/LVg7ppaus23WqJnifFz3Q8ysVdvaSgs0olvV2myubpAsPNDG2TjzsyKbEU ZyQaajEXFScCAI8vPs+aAgAA X-CMS-MailID: 20201030125303eucas1p14a9de4111ffafc1870527abdea0994c9 X-Msg-Generator: CA X-RootMTR: 20201030125303eucas1p14a9de4111ffafc1870527abdea0994c9 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201030125303eucas1p14a9de4111ffafc1870527abdea0994c9 References: <20201030125149.8227-1-s.nawrocki@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch adds registration of a child platform device for the exynos interconnect driver. It is assumed that the interconnect provider will only be needed when #interconnect-cells property is present in the bus DT node, hence the child device will be created only when such a property is present. Signed-off-by: Sylwester Nawrocki --- Changes for v7, v6: - none. Changes for v5: - new patch. --- drivers/devfreq/exynos-bus.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 1e684a4..ee300ee 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -24,6 +24,7 @@ struct exynos_bus { struct device *dev; + struct platform_device *icc_pdev; struct devfreq *devfreq; struct devfreq_event_dev **edev; @@ -156,6 +157,8 @@ static void exynos_bus_exit(struct device *dev) if (ret < 0) dev_warn(dev, "failed to disable the devfreq-event devices\n"); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); if (bus->opp_table) { @@ -168,6 +171,8 @@ static void exynos_bus_passive_exit(struct device *dev) { struct exynos_bus *bus = dev_get_drvdata(dev); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); } @@ -432,6 +437,18 @@ static int exynos_bus_probe(struct platform_device *pdev) if (ret < 0) goto err; + /* Create child platform device for the interconnect provider */ + if (of_get_property(dev->of_node, "#interconnect-cells", NULL)) { + bus->icc_pdev = platform_device_register_data( + dev, "exynos-generic-icc", + PLATFORM_DEVID_AUTO, NULL, 0); + + if (IS_ERR(bus->icc_pdev)) { + ret = PTR_ERR(bus->icc_pdev); + goto err; + } + } + max_state = bus->devfreq->profile->max_state; min_freq = (bus->devfreq->profile->freq_table[0] / 1000); max_freq = (bus->devfreq->profile->freq_table[max_state - 1] / 1000);